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Demonstrations 21 - 40 of 667
Symmetries of a Prism
Proposition 30, Book XI, Euclid's Elements
Proposition 29, Book XI, Euclid's Elements
Inverting the Rhombic Dodecahedron
Volume of the Regular Tetrahedron and Regular Octahedron
Coloring Polyhedra Given by Map Projections
Cubic Symmetry Types
Six-Piece Dissection of a Tetrahedron into Its Mirror Image
Volume of a Cylindrical Hoof
Dehn Invariant of Some Disjoint Unions of Polyhedra with Icosahedral Symmetry
Nets for Regular Spherical Models
Coloring Polyhedra with Four Colors
Dehn Invariant of Some Disjoint Unions of Polyhedra with Octahedral Symmetry
Compounds of Cubes and Their Nets
Nets for Polyhedral Approximations of the Sphericon
Turning a Hollow Regular Dodecahedron Inside Out
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